After their successful collaboration with a Cuban orchestra, Rodrigo Sanchez and Gabriela Quinetro return to basics with their first set of new material in five years. The opening riffs on The Soundmaker are a reminder that the virtuoso acoustic guitarists started out playing heavy metal back in Mexico City before moving to Ireland as buskers, and the album is more direct than some of their earlier work, with the guitars driven on by insistent percussion. The tracks are mostly dedicated to historical figures, and the choices are often more unexpected than the music. The 19th-century Spanish guitar maker Antonio de Torres Jurado and anti-slavery campaigner Harriet Tubman are celebrated with a blend of furious flamenco-influenced strumming and riffs, there's a gently stately track for Chilean poet Gabriela Mistral, and a suitably courtly piece for Eleanor of Aquitaine. They should do well at Glastonbury this summer.